In the last moments of World War II, a secret Nazi space program evaded destruction by fleeing to the Dark Side of the Moon. For 70 years they hide out under conditions of absolute secrecy as construction on a gigantic space fortress begins. Equipped with a massive armada of flying saucers, the Nazis plan to return to earth in the year 2018, at which time they'll use their new fleet and its weaponry to take back their power.